Condensing system.



PATENTED FEB. 28, 1905.

3. S. FORBES. GONDENSING SYSTEM.

APPLICATION FILED APR 16, 1904 llniTEn STATES Patented February 28, 190%.

JOHN S. FORBES, OF PHILADELPHIA, PENNSYLVANIA.

conbewame. eve-real.

SPECIFICATION forming part of Letters Patent No. 783,942, dated February 28, 1905.

Application filed April 15, 190 Serial No. 203,372.

To all IUI'MINI/ it may concern:

Be it known that 1, JOHN :5. Forums, a citizen of the United States, residing in Philadelphia, Pennsylvania, haveinvented certain improvements in Condensing Systems, of which the following is a specification.

My invention consists more particularly in a novel combination of apparatus especially designed for use in connection with the apparatus for evaporating and distilling described and claimed in an application for patent filed by me on August 6, 1903, Serial No. 168,676, although it may be used with equal advantage with any machine or system supplying pure cold water.

The object of the invention is to utilize the cold water produced by a distiller, to condense a portion of the exhaust-steam delivered by engines, particularly on board a ship, in order to lessen the size of the main condenser required for said engines and atthe same time add to the supply of pure water available'for reevaporation in the boilers.

A further object of the invention is to provide a system especially for use on board ship in which are included both a surface and one or more jet condensers, connected to condense the exhaust-steam from the engines.

These objects I attain as hereinafter set forth, reference being had to the accompanying drawings, in which il igure 1 is an elevation, to some extent diagrai'mnatic, showing the preferred arrange ment of apparatus comprisingone form of my inventim'i. Fig. 2 is an elevation of a slightly-modilied form of my invention, and Figs. 3 and A are sectional elevations of certain of the piping connections employed in the apparatus illustrated above.

in the above drawings, A and B are two connected casings or containers, to the lower of which sea-water or other water containing solid matter in solution is supplied, thusiilling said lower casing and partially filling the upper casing through the connecting'cond uit (1,. .In this latter the water is heated, preferably by a steam-coil C, vapor from said water being drawn off by a pump 1), which combeing submerged in the boiling water is at a lower temperature than is the compressed vapor within it, so that this latter is condensed By any desired means (not shown) there is maintained a constant circulation of brine (of which but a relatively small part 1s evaporat'ed)from container B to container A,througli" a pipe a to a second coil E also in the container B, so that when said brine leaves this coil through apipe a" it has been cooled down almost to its original temperature.

The steam condensed during operation in the heating-coil C passes as water through the pipe 0 to a third coil (Sr in the container B, where it also parts with its heat to the incoming brine and is delivered as pure cold water through the pipe 9.

The apparatus so far described is shown and claimed in my above-noted application for patent, and in order to carry out my pres ent invention I connect it as illustrated in the drawings.

H is a steam-engine whose eXhaust-steai'u passes through a pipe 1 to a surface condenser 7:. of the well-l nown form, which is supplied with circulatii'ig water thrrmgh the pipe A. There is a discharge-pipe it leading from said condenser and a pipe l1. for conducting to a hot-well the water resulting from the condensation of steam.

Jet-condensers l1) and 71- are placed in the exhaust-pipe h and are connected, respectively, to the pipesf' and g from the distiller above described. The pipe a is connected to the water-intake pipe of the surface condenser it, and also through a by-pass c to the pipe 7 as shown in detail in Fig. 3, there bein a a a:

f, which is normally closed by a three-way valve f There is also in the pipe f" a second three-way valvcf, connected to a pipe substituted for the jet-condensers h and it f. In operation pure cold water is delivered through the pipe f to the jet-condenser if and after condensing a portion of the exhauststeam from the engine passes with the water from said steam to the hot-well. Similarly the fresh cold water from the pipe g" passes to the condenser it", so that these two auxiliary condensers make it possible to materially reduce the size of the main condenser and its cooperative apparatus. Further, the cold brine from the distiller entering the intake pipe if of the main condenser from the pipe 0* is available for use in said condenser and since it flows under the action of gravity permits a smaller circulating-pump to be employed than would otherwise be possible.

The advantage of employing jet-condensers using pure cold water will be understood when it is noted that such water takes the 'place of that unavoidably lost in the operation of marine plants, thus obviating the necessity of adding further water to that supplied to the boilers.

If desired, a surface condenser H may be noted above, as illustrated in Fig. 2, in which the main container of said condenser is in communication with the exhaust-main through pipes j and y". The water from the two pipes f and g enters the bottom of the condenser through a common pipe 1' and passes out at the top through a pipe f connected to the drain-pipe if of the main condenser. Condensed water from the auxiliary condenser H passes into the exhaust main and thence through the main condenser to the pipe 7L".

If hot distilled water is desired for any purpose, this can be obtained from the pipe f by turning the valve f through one hundred and eighty degrees, in which case the valve f would be similarly turned, so as to permit some of the brine to flow through the coil F. Under these conditions the valve 0 would also be turned one hundred and eighty degrees, so as to connect the pipes f and 0*. Pure cold water can be obtained from a pipe f connected to the pipe f by a suitable valve, while cold brine can similarly be obtained from the pipe (1", which is connected to the pipe 0.

I claim as my invention 1. A condensing system including a distiller, a conduit in connection with a source ofvapor to be condensed, a condensing-head within said conduit supplied with liquid from the distiller and a surface condenser connected with said conduit, substantially as described.

2. The combination of a distiller, a conduit connected to a source of vapor-supply, a surface condenser connected thereto, and a jetcondenser in said conduit connected to the distiller, substantially as described.

3. The combination of a conduit connected to a source of vapor to be condensed, a sur face condenser connected thereto, a jet-condenser in the conduit, adistiller connected to said jet-condenser and a cooling device interposed between the distiller and the condenser, substantially as described.

4. The combination of a distiller and acondenser, with a heat-exchange having its chambers connected respectively to said two de= vices, a second condenser and means for connecting it to one chamber of said heatex change, substantially as described.

5. The combination of a distiller, a conduit for vapor to be condensed, and a main and an auxiliary condenser connected to said conduit, said auxiliary condenser being supplied with cooling fluid from said distiller, substantially as described.

6. The combination of a conduit for vapor to be condensed, main and auxiliary condensers connected thereto, a distiller connected to said auxiliary condenser, with means for cooling liquid from said distiller before it is delivered to said condenser, substantially as described.

'7. The combination of a conduit for vapor to be condensed, main and auxiliary condensers connected thereto, a'distiller, steam-heating means therefor, with means for delivering condensed water from the distiller and from said heating means to said auxiliary condenser, substantially as described.

8. A system including means for evaporating water and means for condensing the same, including a device for cooling the condensed water, with a condenser connected to receive water from said cooling device, substantially as described.

9. The combination with a conduit for vapor to be condensed of a main condenser connected thereto, a distiller including means for heating and partially evaporating a body of liquid, means for cooling the unevaporated liquid, with a connection for delivering said liquid to the intake-circulating pipe of said condenser, substantially as described.

10. A system including a distiller having evaporating and condensing compartments, with a device having a plurality of chambers for fluid to be cooled and connections respectively between the compartments of the distiller and the chambers of the cooling device, said connections including means for diverting hot distilled fluid from a chamber of the cooling device and means for directing hot liquid from the evaporating compartment into said second chamber of the cooling device, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN S. FORBES. Witnesses:

\VILLIAM E. BRADLEY, Jos. H. KLEIN. 

